Method: TkVariable#trace_info_for_element

Defined in:
lib/tk/variable.rb

#trace_info_for_element(elem) ⇒ Object Also known as: trace_vinfo_for_element 



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# File 'lib/tk/variable.rb', line 1469

def trace_info_for_element(elem)
  if @elem
    fail(RuntimeError,
         "invalid for a TkVariable which denotes an element of Tcl's array")
  end
  return [] unless @trace_elem
  return [] unless @trace_elem[elem]
  @trace_elem[elem].dup
end